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  • Nature Publishing Group  (3,487)
  • Cambridge University Press  (1,932)
  • 1980-1984  (5,419)
  • 1980  (5,419)
  • 1926
  • 1
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    Cambridge : Cambridge University Press
    The @journal of modern African studies 18 (1980), S. 1-4 
    ISSN: 0022-278X
    Source: Cambridge Journals Digital Archives
    Topics: Ethnic Sciences , History , Political Science , Economics
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    ISSN: 0022-278X
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    Topics: Ethnic Sciences , History , Political Science , Economics
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  • 3
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    Cambridge : Cambridge University Press
    The @journal of modern African studies 18 (1980), S. 711-712 
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  • 5
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    Cambridge : Cambridge University Press
    The @journal of modern African studies 18 (1980), S. 411-425 
    ISSN: 0022-278X
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    Topics: Ethnic Sciences , History , Political Science , Economics
    Notes: Late in 1979 the Zambian Government unveiled its Third National Development Plan which will guide policies until the year 1984, and this implies that problems of unemployment, particularly in urban areas, will be partly overcome by an expansion of self-employment possibilities.Such was the enthusiasm for the new initiative that the absence of reliable information surrounding it was largely ignored. This article attempts to provide relevant data concerning a number of issues which will be vital in implementing any measures to encourage self-employment in the so-called ‘informal sector’ of the Zambian economy. In particular we shall endeavour to quantify the likely flows into the labour force, particularly from the educational system, the possible growth of formal wage employment in urban areas, and the current size and composition of the informal sector. Finally, conclusions are drawn concerning the possible rôle of this sector in absorbing the unemployed in the plan period.
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  • 6
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    Cambridge : Cambridge University Press
    The @journal of modern African studies 18 (1980), S. 427-441 
    ISSN: 0022-278X
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    Topics: Ethnic Sciences , History , Political Science , Economics
    Notes: Discussion of industrial activity in capitalist Third-World countries has usually centred on a series of dualistic frameworks, most recently the opposition between the so-called ‘formal’ and ‘informal’ sectors of an economy. Such dichotomies attempt to divide the activities of labour as cleanly as possible into two groups sharing common characteristics. The categories that emerge – modern/traditional, large/small-scale, formal/informal – overlap to a considerable degree because, in effect, they all attempt, with varying crudity, to compare the socio-economic characteristics of those dominant capitalist enterprises which are based on intensive capital, high-level technology, and a large scale of production, with those activities in the economy which are not based on such features. As such, the second category tends to have both negative and residual components.
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    Cambridge : Cambridge University Press
    The @journal of modern African studies 18 (1980), S. 443-468 
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    Topics: Ethnic Sciences , History , Political Science , Economics
    Notes: The constitutional development of Nigeria which started under the British occupation has been marked by two fundamental principles: the decision to set the political evolution of the country on a federal basis, and the effort, far less successful, to integrate the traditional institutions into a modern political system. This second principle will be the subject of this article, which I hope will also shed some light on the complex relationships between tradition and modernity, and thus show the importance of ‘primordial loyalties’ in political life.
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  • 8
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    Cambridge : Cambridge University Press
    The @journal of modern African studies 18 (1980), S. 493-508 
    ISSN: 0022-278X
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    Topics: Ethnic Sciences , History , Political Science , Economics
    Notes: The potential for superpower confrontation on the Horn of Africa in 1977 and 1978 focused world attention on Somalia. For a few brief months, the popular press published regular accounts of President Siad Barre's military campaign in the Ogaden desert against neighbouring Ethiopia. The U.S. Department of State heralded the rôle of Soviet and Cuban advisers in the conflict. When Somalia ousted the Russian forces and abrogated the Treaty of Friendship and Co-operation with the U.S.S.R., the move was interpreted as a major diplomatic setback for Moscow. Now, as quickly as it erupted, the news flow about the Horn has halted.
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  • 9
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    Cambridge : Cambridge University Press
    The @journal of modern African studies 18 (1980), S. 509-524 
    ISSN: 0022-278X
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    Topics: Ethnic Sciences , History , Political Science , Economics
    Notes: When Henry Kissinger became Secretary of State in September 1973 he instructed all American embassy personnel to monitor human rights in the countries in which they were serving. President Jimmy Carter was not responsible for America's interest in human rights, only for the policy of affirmative action. When his Assistant Secretary for Human Rights commenced work she found only two members of the State Department permanently assigned to the task, and her sole guideline was the manual for setting up her office.
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    Cambridge : Cambridge University Press
    The @journal of modern African studies 18 (1980), S. 525-531 
    ISSN: 0022-278X
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    Topics: Ethnic Sciences , History , Political Science , Economics
    Notes: Throughout Ghana many commercial passenger vehicles bear mottos and names, boldly written on their bodies, usually at the front. The widespread nature of these inscriptions would seem to suggest that they are a part of the occupational sub-culture, namely the distinctive pattern of behaviour, norms, and customs which serves to identify commercial transportation. A general theme running throughout the present study is that this sub-culture reflects not only the unique needs of the drivers, but also the socio-economic and cultural environment within which they operate.
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    Cambridge : Cambridge University Press
    The @journal of modern African studies 18 (1980), S. 533-540 
    ISSN: 0022-278X
    Source: Cambridge Journals Digital Archives
    Topics: Ethnic Sciences , History , Political Science , Economics
    Notes: The Lesotho Minister for Agriculture, Co-operatives, and Marketing was reported recently to have shaken the delegates at the World Conference on Agrarian Reform and Development in Rome by his observation on the value of such intergovernmental gatherings on the subject of development:
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    Cambridge : Cambridge University Press
    The @journal of modern African studies 18 (1980), S. 1-4 
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    Cambridge : Cambridge University Press
    The @journal of modern African studies 18 (1980), S. 1-6 
    ISSN: 0022-278X
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  • 14
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    Cambridge : Cambridge University Press
    The @journal of modern African studies 18 (1980), S. 541-549 
    ISSN: 0022-278X
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    Topics: Ethnic Sciences , History , Political Science , Economics
    Notes: On 22 October 1966, 393 students, all but 70 of them from the University College, demonstrated in Dar es Salaam against the Tanzania Government's proposals for National Service to be compulsory for students completing their education at Form VI level and above.1 Marching through the streets of the capital to show their disapproval, and carrying banners some of which read ‘Colonialism was Better’2 they were diverted to State House, where they had to deliver their ultimatum to the President, Mwalimu Julius K. Nyerere, in person. Flanked by his Ministers, he listened to their demand that unless the terms of the National Service were changed they would not accept the scheme in spirit: ‘Let our bodies go, but our souls will remain outside the scheme’. In his reply, the President made it clear that he had no intention of forcing anyone into National Service against his will. But since these students were unwilling to serve the nation, they should be returned immediately to their parental homes. Whereupon the demonstrators were rounded up by waiting (and obviously prepared) police, finger-printed, and despatched under armed guards to their homes throughout the country.
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  • 15
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    Cambridge : Cambridge University Press
    The @journal of modern African studies 18 (1980), S. 237-256 
    ISSN: 0022-278X
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    Topics: Ethnic Sciences , History , Political Science , Economics
    Notes: There is general agreement that sports are used for political purposes. The controversy over whether this should or should not be the case is really a struggle about how they should be used. Those who argue for the separation of sports and politics tend to be satisfied with the existing use, while those against the separation tend to be dissatisfied with the present situation. The positions are rational: each group seeks to use this arena to achieve its own political objectives. Although some involvement of politics in sports appears universal, the degree varies considerably from country to country.
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  • 16
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    Cambridge : Cambridge University Press
    The @journal of modern African studies 18 (1980), S. 181-200 
    ISSN: 0022-278X
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    Topics: Ethnic Sciences , History , Political Science , Economics
    Notes: Only a few social scientists outside the field of Middle East studies are aware that in the sovereign state of Libya today there is no government. Indeed, it is not likely to have one so long as the country's strongman, Colonel Mu'ammar al-Qadhafi,1 continues to be the leader of the Libyan revolution. This has been the case ever since 2 March 1977, when the institution of government in its traditional legal-bureaucratic sense was dismantled, and the people's authority, exercised through people's congresses and committees, was proclaimed. By this action, Libya initiated in practice the so-called era of jamahiriya—the era of the masses and the practice of direct democracy – and has taken a number of steps in that direction. A recent example was the renaming of some of its embassies overseas as ‘people's bureaux’, with Libyan students and citizens taking charge of their functions and management.2 This action, instigated personally by Qadhafi, was intended to illustrate to the world that since Libya has no government, ordinary Libyan citizens overseas represent themselves directly to foreign peoples.
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    Cambridge : Cambridge University Press
    The @journal of modern African studies 18 (1980), S. 281-295 
    ISSN: 0022-278X
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    Topics: Ethnic Sciences , History , Political Science , Economics
    Notes: Although the analysis which follows centres upon the West African state of Mali, much of what is said applies in varying measure to other examples of military state capitalism in Africa and elsewhere. Its importance is underscored by the fact that this is an increasingly common régime variant in the Third World. Similarly, domestic militarism has been transformed from an unusual occurrence to a phenomenon which evokes little more than a déjà vu response. Today nearly half of the governments of the ‘South’ are directly or indirectly dominated by the military, whereas three decades ago little more than 15 per cent could be so classified.
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    Cambridge : Cambridge University Press
    The @journal of modern African studies 18 (1980), S. 330-332 
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  • 19
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    Cambridge : Cambridge University Press
    The @journal of modern African studies 18 (1980), S. 332-334 
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  • 20
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    Cambridge : Cambridge University Press
    The @journal of modern African studies 18 (1980), S. 334-337 
    ISSN: 0022-278X
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  • 21
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    Cambridge : Cambridge University Press
    The @journal of modern African studies 18 (1980), S. 1-4 
    ISSN: 0022-278X
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    Topics: Ethnic Sciences , History , Political Science , Economics
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    Cambridge : Cambridge University Press
    The @journal of modern African studies 18 (1980), S. 1-22 
    ISSN: 0022-278X
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    Topics: Ethnic Sciences , History , Political Science , Economics
    Notes: In October 1970, after the civil war had ended, General Yakubu Gowon reiterated his earlier pledge that military rule would be terminated on 1 October 1976, but two years before that date he postponed the return to civilian rule indefinitely on the grounds that Nigerians had not yet demonstrated ‘moderation and self-control in pursuing sectional ends’.1 In July 1975, nine years after his own elevation to Head of the Federal Military Government (F.M.G.), Gowon was removed by a coup d'état led by Brigadier Murtala Mohammed, who cited mismanagement as the immediate reason. However, after the coup, ‘well-placed spokesmen for the new administration...reaffirmed that the goals of the coup were to restore the good image of the military and to create conditions which will make reactive military intervention unnecessary in the future’.2
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    Cambridge : Cambridge University Press
    The @journal of modern African studies 18 (1980), S. 143-150 
    ISSN: 0022-278X
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    Topics: Ethnic Sciences , History , Political Science , Economics
    Notes: Disappointed with the development performance of most Third-World countries during the past two decades, many scholars and public officials have looked for a more effective strategy. They are concerned not merely with the extent of growth, but where it has occurred, with evidence that relatively little of the benefits of increased productivity has ‘trickled down’ to the poorer half of the populations of these lands. Capital-intensive methods have raised expectations in both the urban and the rural areas without generating adequate employment opportunities or distributing the benefits of growth equitably. As a consequence, the many poor remain as desperately disadvantaged as they ever were, making a re-evaluation of development priorities, within as well as outside of Africa, of the utmost importance at this juncture.
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    [s.l.] : Nature Publishing Group
    Nature 288 (1980), S. 633-633 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Staff morale may be as much a threat to the British fast reactor programme as the prospect of a public inquiry on the project. The latest sign of this is the resignation of Mr Jack Moore, coordinator of the fast reactor programme at the UK Atomic Energy Authority (UKAEA), at the end of the year. Mr ...
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    Nature 288 (1980), S. 634-634 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Saturn, as seen by Voyager 1 on 16 November, four days after the encounter. Some of the dark spoke-like ring features (Nature 4 December) are seen as bright patches due to scattering of sunlight from particles within them. Voyager 1 will be monitored to as great a distance as possible in an attempt ...
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    [s.l.] : Nature Publishing Group
    Nature 288 (1980), S. 636-636 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Brussels Agreement has still not been reached by the Environmental Council of the EEC on two pieces of legislation: one concerning the prevention of industrial accidents and the other on the level of mercury discharge. However, new controls on whale imports, the recycling of waste paper, and ...
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    [s.l.] : Nature Publishing Group
    Nature 288 (1980), S. 638-638 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR - I have just read your article concerning Unesco in the 6 November issue of Nature. While I shall refrain from commenting upon the overall content of the article - although for instance we do not know here of any "new technological order" which would have been approved by the recent Belgrade ...
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    Nature 288 (1980), S. 632-632 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Washington It may not last, but in contrast with previous years, when President Carter's requests for additional funding for science were trimmed back by Congress, the final 1981 research budget looks in even better shape than when it was presented in January 1980. The Administration revised ...
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    [s.l.] : Nature Publishing Group
    Nature 288 (1980), S. 694-697 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] What is R in equation (1)? On the basis of a particular outbred model, Hamilton1'2 claimed that Wright's19 'coefficient of relationship' was the required R. However, later, giving a heuristic development but no further model, Hamilton20'21 modified his identification of R with Wright's coefficient ...
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    [s.l.] : Nature Publishing Group
    Nature 288 (1980), S. 702-705 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] In the first series of experiments we studied the change in the renin concentration of normal male plasma during acid-activation in the presence and absence of soya bean trypsin inhibitor (Fig. 1). Samples of plasma (0.5 ml) were dialysed to pH 3.0 for 24 h at 4 C (rf. 1) and then taken to pH 7.4 ...
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    [s.l.] : Nature Publishing Group
    Nature 288 (1980), S. 711-713 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Electrotonic coupling between epithelial cells was measured by conventional intracellular glass microelectrodes21. Current pulses were passed and voltages recorded through a single microelectrode. In the intact animal measurements were performed in the head, mid-gastric and foot regions with the ...
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    [s.l.] : Nature Publishing Group
    Nature 288 (1980), S. 727-729 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Thirteen human cell strains, most of them derived from malignant tumours, were studied (Table 1). The phenotype of each strain was classified as Mer+ or Mer by R. Day, on the basis of whether or not the cells were proficient in supporting the growth of adenovirus 5 treated with ...
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    [s.l.] : Nature Publishing Group
    Nature 288 (1980), S. 733-734 
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    Notes: [Auszug] EAMG was produced in female Lewis rats (200-225 g) by immunizing them with 50 g of AChR, emulsified in an equal volume of Freund's complete adjuvant, injected intradermally. AChR was extracted from the electric organs of Torpedo cali-fornicus with Triton X-100 and purified by affinity ...
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    Nature 288 (1980), S. 637-637 
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    Notes: [Auszug] Brasilia, November In the scramble to develop its unexploited resources, officials say that Brazil is turning away from the Amazon Basin to an area of savannah, known locally as the Cerrados, covering about 180 million hectares mainly in the centre of the country. Attempts to open up the Cerrados, ...
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    Nature 288 (1980), S. 636-637 
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    Notes: [Auszug] The next director of DESY, the West German particle physics laboratory at Hamburg, will be 49-year-old Dr Volker Soergel, at present a member of the directorate of CERN, the European centre for particle physics in Geneva. Departing DESY director Professor Herwig Schopper announced the appointment ...
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    Nature 288 (1980), S. 742-742 
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    Notes: [Auszug] THE momentum that was given to retro-virus research by the discovery of reverse transcriptase is still strong. Today, ten years after that discovery, the field remains one of the most active areas in biology. The book, a collection of 12 reviews by as many groups, is an attempt to take stock and ...
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    Nature 288 (1980), S. 544-547 
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    Notes: [Auszug] The recent observations ofsolar 5-min oscillations of low degree agree approximately with the predictions of a standard solar model with normal abundances of helium and heavy elements. Much of the apparent discrepancy noticed when the observations werefirst announced was a result of having ...
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    Nature 288 (1980), S. 697-698 
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    Notes: [Auszug] Ecological studies of grasshoppers and locusts have often considered weather factors to be important determinants of population size or growth rate4"9. Dry soil conditions in particular seem to favour population increases of many economically important Orthopteran species10. It has been ...
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    Nature 288 (1980), S. 571-574 
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    Notes: [Auszug] Previous geochronological use of the 176Lu-176Hf decay scheme involved REE-rich minerals1'2 in attempts to determine the half life. Faure3 summarized all physical determinations and suggested a best estimate of 3.5±0.2xl010yr. However, because 176Lu is an odd Z-odd N nuclide, then a ...
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    Nature 288 (1980), S. 578-580 
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    Notes: [Auszug] The inside of the pit of the anterior median eye of P. fimbriata is structureless and must have a refractive index (rc) close to that of saline, about 1.336 (Fig. 2). In glutaraldehyde-fixed material, cut while frozen, the matrix behind the pit was found by inter-ferometry to have a uniform n, a ...
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    Nature 288 (1980), S. 717-718 
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    Notes: [Auszug] The following clues led us to this identification: (1) Deul and Thorn's observation5 that, whereas after either BAL treatment or addition of antimycin electron flow between cytochromes b and c is blocked, the addition of antimycin to BAL-treated preparations causes a block in the reduction of ...
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    Nature 288 (1980), S. 722-724 
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    Notes: [Auszug] The large T antigen, the 55K cellular protein and the small t antigen were the major labelled proteins specifically immuno-precipitated from an SV40-transformed cloned mouse fibroblast cell *215CSC with the SV40 tumour (T) serum1"9, as shown in the left half of the panels of Fig. 1. In the ...
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    Nature 288 (1980), S. 730-733 
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    Notes: [Auszug] To isolate human VK genes, we used the ability of mouse and human V gene sequences to cross-hybridize15. A mouse VK plus constant region cDNA clone derived from MPC11 plasmacy-toma cells16 was used as a probe to screen a library of fragments of human fetal liver DNA17 cloned in the ? phage vector, ...
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    Nature 288 (1980), S. 539-539 
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    Notes: [Auszug] Fanduri—a Dorey papuan Epa — a Village of the Mahori papuans. Pictures from "New Guinea: What I did and what I saw" by L. M. D'Albertis reported in Nature 23,16 December, 153, ...
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    Nature 288 (1980), S. 531-531 
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    Notes: [Auszug] Financial crisis threatens the "very existence" of the Weizmann Institute of Science, Israel's private and principal research institution - or at least that is what Weizmann president, Professor Michael Sela, told the governing body recently. But according to the Weizmann Institute Foundation in ...
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    Notes: [Auszug] Gene A protein, the initiator protein of bacteriophage ΦX174 DNA replication, cleaves synthetic single-stranded oligodeoxyribonucleotides at the same site as the corresponding sequence at the ΦX origin. The results identify the recognition sequence within the decamer CAACTTGATA which is ...
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    Nature 288 (1980), S. 540-540 
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    Notes: [Auszug] COMETS are the most spectacular bodies in our solar system and the anticipated return of Halley's Comet in 1985-6 has already proved a catalyst for increased cometary research. As the comet nucleus contains, perhaps with the exception of phosphorus, the necessary ingredients for life on this ...
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    Nature 288 (1980), S. 548-551 
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    Notes: [Auszug] Reconsideration of meridian circle observations with analysis of transits of Mercury and durations of total solar eclipses indicate that there has been no detectable secular change in the solar diameter during the past 250 ...
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    Nature 288 (1980), S. 589-590 
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    Notes: [Auszug] Sixty male and sixty female Fischer 344 rats of the colony of the Frederick Cancer Research Center, bred and raised in SPF conditions, were housed in plastic cages with wire-mesh bottoms (five rats per cage). The animals were 6-7 weeks old at the beginning of the experiment, and were randomized ...
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    Nature 288 (1980), S. 442-446 
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    Notes: [Auszug] The correlation between variations of the bathymetry and of the geoid in the Pacific Ocean suggests that both are the surface expression of mantle convection. The planform of the convection which is required to generate the observed anomalies does not consist of rolls but is three dimensional, with ...
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    Nature 288 (1980), S. 455-459 
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    Notes: [Auszug] A protein has been purified from Acanthamoeba which, like cytochalasin B, caps the end of actin filaments normally favoured for monomer addition and inhibits the interactions of actin filaments. In addition, this ‘capping’ protein nucleates the polymerization of actin monomers and ...
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    Notes: [Auszug] F9 12-1 cells are morphologically identical to murine ECCs. In our experiments (Table 1), we were unable to find any unequivocably SV40 T antigen-positive nuclei; however, because it is difficult to estimate nuclear fluorescence in ECCs due to their characteristic growth in clumps of rounded cells, ...
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    Nature 288 (1980), S. 620-622 
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    Notes: [Auszug] Studies of concentrated isolated chromatin by X-ray and neutron scattering have shown dominant structural periodicities at about 110, 55, 38, 27 and 22 A7'14. The intensities and exact positions of these bands depend on ionic composition of the solution and chromatin concentration. Significantly ...
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    Nature 288 (1980), S. 628-629 
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    Notes: [Auszug] To MANY teachers of biophysical chemistry it seems strange to note that over the past two decades instruction on the subject of macromolecules has progressed to a position of marked contrasts. On the one hand, structural descriptions of macro-molecules are based on accurate methods of X-ray ...
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    Nature 288 (1980), S. 630-630 
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    Notes: [Auszug] CDdlo Iringo. Cap.LXXVL E O iringo fie caldo Si humido ncl primo grado : Et laruahumiditacrnagiorcdcllaruacalidita: & quel li ehe uno la radicc condita co melle molriplica il pcr ma:cfa ai coicxx& allodrisaredclla ucrga ; & fa bon nu trimentorDicc fcrapione Si Auiccna :Ec l radicc de ...
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    Nature 288 (1980), S. 425-425 
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    Notes: [Auszug] Washington As widely expected, the US National Science Foundation (NSF) has announced its intention to set up a new directorate for engineering, and to distribute responsibility for applied science - at present administered jointly with engineering - across the foundation's basic science ...
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    Nature 288 (1980), S. 426-427 
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    Notes: [Auszug] The Gierek regime consistently "torpedoed or disavowed" constructive criticisms from its nine-person team of scientific advisers. So claims Professor Alojzy Melich, a member of the team since its inauguration in 1977, in an interview in Trybuna Robotnicza, the daily paper of Katowice (Mr Gierek's ...
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    Nature 288 (1980), S. 428-429 
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    Notes: [Auszug] Kuala Lumpur, November At a time when the new Administration in the United States seems likely to ease up on the stringent regulation of technological products, consumer groups in the Third World are beginning to voice demands for protection against potentially harmful substances and goods like ...
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    Nature 288 (1980), S. 430-430 
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    Notes: [Auszug] SIR-In Dr Halstead's pleas for traditionalism in the Natural History Museum's exhibitions (Nature 20 November, p.208) he makes an assumption that lends much potential support to those whose policies he is so "fervently dedicated" to trying to discredit. It is true that Marxists have attempted to ...
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    Nature 288 (1980), S. 433-433 
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    Notes: [Auszug] The recently-presented budget of Prussia shows that, despite the financial straits of the kingdom, no considerations of economy are allowed to hamper the growth of its scientific and educational system. First on the list come the nine universities with an allotment of 7,050,000 marks (352,500/.). ...
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    Nature 288 (1980), S. 437-438 
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    Notes: [Auszug] A survey of the literature shows that the study of actin filament assembly is positively booming although it is one of the older areas in the contractile protein field. Understanding of the polymerization of many protein polymers grew out of biophysical studies begun in the 1960s on the mechanism ...
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    Nature 288 (1980), S. 322-322 
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    Notes: [Auszug] MOST organic compounds released into the environment are rapidly broken down by the activities of fungi and bacteria. However, certain man-made compounds (xenobiotics) are not quickly degraded. Public concern over the persistence of such compounds stems from their accumulation in food chains and ...
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    Nature 288 (1980), S. 438-438 
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    Notes: [Auszug] In the News and Views article "Lessons from a peptidergic neurone" by B. T. Pickering (13 November, 288,117; 1980) the molecular weights quoted were incorrectly altered by the insertion of 'K' and should instead by read in ...
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    Nature 288 (1980), S. 488-489 
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    Notes: [Auszug] As human chromosomes are lost in mouse x human hybridomas3'4 it is difficult to obtain interspecies hybridomas that secrete human antibodies, because such hybrids must retain both of the two human chromosomes that carry the rearranged genes for the human light and heavy immunoglobulin chains3'4. ...
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    Nature 288 (1980), S. 491-492 
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    Notes: [Auszug] Myosin was detected in the hair cells of the guinea pig cochlea by indirect immunofluorescence using an antiserum raised against human smooth muscle myosin4. Immunofluorescence was visible in very specific areas of the organ of Corti. The stereocilia fluoresced strongly along their length (Fig. ...
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    Nature 288 (1980), S. 312-312 
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    Notes: [Auszug] Sir Keith Joseph, allegedly the British Cabinet's hard man on monetarism and other issues of grand policy, last week published a soft, even muddled, bill for the reorganization of the nationalized British telecommunications industry. The bill, which the government hopes will be law before the end ...
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    Nature 288 (1980), S. 312-313 
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    Notes: [Auszug] Kuala Lumpur Faced with internal racial pressures and a growing concern about academic quality, educational authorities in Malaya seem to be easing up slightly on the harshness of previous measures to reform the country's education system. Two aspects of this policy have come under particular ...
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    Nature 288 (1980), S. 314-314 
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    Notes: [Auszug] Fertilizer production has been hived off from the Soviet Ministry of the Chemical Industry and now merits a ministry of its own, under Minister Aleksei Petrishchev, previously deputy chairman of the State Committee for Material and Technical Supply. At the same time, a new Minister of the Chemical ...
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    Nature 288 (1980), S. 316-316 
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    Notes: [Auszug] SIR - In the article "Medical schools stay" (Nature 6 November, p.6) you say that King's College Hospital Medical School is reprieved. The Flowers Report did not in fact envisage the closure of King's College Hospital Medical School but suggested a fusion with Guy's Hospital, the product to be ...
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    Nature 288 (1980), S. 318-318 
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    Notes: [Auszug] Herr V. Bergso, in a recent work, "Fra Mark og Skov," has given some interesting data in regard to the habits of the Tarentula, Lycosa tarentula, Latr., whose nests he has traced and examined on the Roman Campagna. He found that the nest, which was well rounded and smooth, was approached by a ...
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    Nature 288 (1980), S. 319-319 
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    Notes: [Auszug] AN attractive hypothesis for the control of eukaryotic cell proliferation is that it is regulated at a particular point during the G j period before the initiation of DNA replication. This Gj control has been called the 'restriction point' in mammalian cells (Pardee, A. B. Proc. natn. A cad. Sei. ...
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    Nature 288 (1980), S. 208-208 
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    Notes: [Auszug] SIR-One of the problems associated with Legionnaires' disease lies in the tracking down of the source of infection. Air conditioning systems seem to be prime suspects. So far as I am aware, nobody has thought of looking behind refrigerators. Having had occasion to do this recently, I was taken ...
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    Nature 288 (1980), S. 211-212 
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    Notes: [Auszug] THE climatic environmental history of Africa is a major unknown on a time scale from thousands to millions of years. So far as the Pleistocene is concerned, we are building up a fairly complete picture of the characteristics of climatic change, both on the northern continents and over the oceans. ...
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    Nature 288 (1980), S. 215-217 
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    Notes: [Auszug] THE 200 or so molecular biologists who attended the sixth EMBO symposium* in Heidelberg spent 3 !/2 days discussing gene organization and expression in green plants. The surprisingly large size of the audience might suggest that the organizers had found a patch of fertile ground and that the ...
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    Nature 288 (1980), S. 225-229 
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    Notes: [Auszug] The Voyager missions have revealed that jovian kilometric radiation (emanating from Jupiter's magnetosphere) is beamed away from the zenomagnetic equator. Results from GEOS 1 show that terrestrial non-thermal continuum or myriametric radiation is similarly beamed away from the geomagnetic ...
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    Nature 288 (1980), S. 361-363 
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    Notes: [Auszug] The material (Fig. 1) comprises three uncrushed specimens- the front of the fused mandibles (QM F10613), a single vertebra (QM F10614) and an isolated left scapulocoracoid (QM F10612). These were collected from flaggy limestones of the Toolebuc Formation at an unnamed locality 13 km south of ...
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    Notes: [Auszug] Preliminary experiments indicated that the use of non-irradiated collagen markedly reduced the overall population of glial cells when mesencephalic cells of 13-day-old mouse embryos were cultured with serum. Furthermore, autoradio-graphy of the cultures (Fig. \c) after a 48-h pulse of 3H-thymidine ...
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    Nature 288 (1980), S. 373-376 
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    Notes: [Auszug] Descending thoracic aortas were excised from white, male, New Zeaiand rabbits (2-3 kg), and trimmed free of adhering fat and connective tissue as previously described2. Transverse rings of 2.5-rnm width were cut with scissors or with a special cutting device containing five parallel razor blades. A ...
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    Nature 288 (1980), S. 408-410 
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    Notes: [Auszug] Fig. 1 Projection of the hexagonally packed collagen molecules along their axis. The small distortions of the lattice and the slight (4) tilting of the collagen molecules are not shown. The numbers 1-5 refer to the molecular segments (see lower left) in one 66.8-nm (D) thick transverse section. The ...
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    Nature 288 (1980), S. 410-413 
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    Notes: [Auszug] Many aspects of the structure of collagen fibrils have been satisfactorily accounted for in recent years. The chain conformation in tropocollagen molecules has recently been refined by Fraser et al.13, and the axial striation patterns in positively stained aggregates of collagen have been ...
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    Nature 288 (1980), S. 419-419 
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    Notes: [Auszug] AT A time when the financial outlook for fundamental science may appear bleak, these two volumes should raise the spirits even of the pessimistic. Undaunted, more than 200 scientists and engineers gathered at Tucson, Arizona, in January 1980 to discuss how best to apply the latest technologies to ...
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    Nature 288 (1980), S. 113-113 
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    Notes: [Auszug] MAGNETITE is a remarkable material, as the first users of lodestones were well aware. When reasonably pure, it looks and feels like a metal. Lumps of magnetite such as can be picked up in some iron mines even sound metallic when struck or thrown to the ground. It is therefore worth recalling that ...
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    Nature 288 (1980), S. 117-118 
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    Notes: [Auszug] SECRETED polypeptides are known to begin their lives as parts of larger precursors but for many biosynthetic pathways the question persists of 'how large is larger*. This question has recently been asked for the precursors of vasopressin by Paul Cohen and his associates in Paris (Proc. natn. ...
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    Nature 288 (1980), S. 243-246 
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    Notes: [Auszug] The far UV photolysis of various CH4-NH3 mixtures was carried out under a total pressure of 13 mbar into a cylindrical all-pyrex reactor (/ = 35 cm; i.d. = 4 cm) with a low-pressure Xe-lamp attached (window, MgF2; ? = 147 nm, monochromatic; flux emitted = 8 x IO15 photon s"1). The apparatus has ...
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    Nature 288 (1980), S. 250-252 
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    Notes: [Auszug] The iron ore reserves of the Hamersley Iron Province exceed 33 x 109 tonnes, much of it contained in huge ore bodies, some of theai exceeding 5 km along strike and extending below the present water table to as much as 400m down dip. They conform to the bedding of the host BIF and, in common with ...
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    Nature 288 (1980), S. 149-150 
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    Notes: [Auszug] The extended extragalactic double radio sources—quasars, BL Lac-type-objects (blazars), and radio galaxies—are commonly interpreted as synchrotron sources in which extremely relativistic electrons gyrate in enhanced magnetic fields. The detection of narrow emission bridges between hot ...
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    Nature 288 (1980), S. 162-164 
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    Notes: [Auszug] The experimental design is shown in Fig. 1. Axons originating from expiants of chick retina grow through a zone where they are simultaneously exposed to two different cell types (retinal and tectal cells) and where they may 'choose' the more attractive one. A retinal expiant is spread on a black ...
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    Nature 288 (1980), S. 277-278 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Table 1 compares the activity for JV-methylation of phosphatidylethanolamine in rat liver microsomes with the highest activity reported for several other membrane preparations. The activity in the microsomes from adrenal medulla is 100-fold lower than in liver microsomes and 1,000-fold lower in the ...
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    Nature 288 (1980), S. 290-293 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The cloned ? lymphoma lines chosen for study were STRij-4-2.2 (ST4), STRij-1.3 (ST1), WEHI-22.1 (W22), EL-4.1 (EL4) (described in rf. 8) and WEHI-112.1 (W112): they contained 33, 1.5, 3, 1.5 and 30-50 molecules of C" RNA per cell, respectively. In addition, two B lymphoma cell lines, WEHI-231 ...
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    Nature 288 (1980), S. 301-301 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SMITH AND PiLBEAM1 have argued that "the available evidence .,. justifies the concept of a Pliocene orang-utan ancestor at least as terrestrial as the modern chimpanzee". It is, however, questionable whether they have established their thesis as equally, or more, plausible than the one they wish to ...
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  • 91
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    Nature 288 (1980), S. 302-303 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] JEMMERSON AND MARGOLIASH'S article1 raises provocative questions about immunological unresponsiveness to self-antigens. They found that the autoantigenic sites on rabbit cytochrome c correspond to those regions in the molecule where other mammalian cyto-chromes c differ, and suggested that archaic ...
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    Nature 288 (1980), S. 193-193 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] KEMP1 has recently hypothesized that "the synapsid [mammal-like reptile] skull evolved from a limnoscelid-like skull rather than from that of a romeriid, and that the temporal fenestra of the mammal-like reptiles evolved directly from the remnant of the crossopterygian hinge line". This disagrees ...
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    Nature 288 (1980), S. 681-684 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] PSR1237 + 25 is nearby (at an estimated distance of 300 pc) and also bright (with a peak flux of 100 Jy at 430 MHz). Despite the complexity of the intensity profile, the position angle remains virtually constant during each pulse. Assuming that the radiation's plane of polarization maintains a ...
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  • 94
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    Nature 288 (1980), S. 690-692 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The phosphorites of the present study were recovered from the outer continental shelf and upper slope between 29 and 32 S (Fig. 1). In this region, the shelf is fairly narrow (25-40 km) and the slope is unusually steep, with the major shelf break occurring at depths9*10 between 210 and 450 m. A ...
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    Nature 288 (1980), S. 699-700 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Environmental fluctuations were created by altering the amount of culture medium (95% unbleached wheat flour, 5% brewer's yeast by weight) between 32 and 8 g at regular intervals. This experimental regime represents fluctuations in carrying capacity, for Tribolium population size is known to be ...
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  • 96
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    Notes: [Auszug] The distribution of OLPs in the sucrose-D2O density gradient used to purify noradrenergic LDVs is shown in Fig. 1. Of the original peptide activity layered onto the density gradient (SN15), 14.6% is soluble and remains above the buffer zone. About 90% of the recoverable, sedimentable OLP material ...
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    Nature 288 (1980), S. 713-715 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Recent work has demonstrated that cultured LI 210 cells attach tightly to large (70 ??) Sephacryl beads coated with Cbl-TCII8. Although the binding of numerous cells (-150 cells per bead) somewhat obscured the contact zone between the bead and the cell, it was apparent that cellular microvilli made ...
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    Nature 288 (1980), S. 720-722 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The experiments involved plating cultures at high density and low serum content in 35-mm plates in medium containing 0.5% chicken serum (see Fig. 1 legend), and maintaining them at either 41.5 or 35 C for 36-48 h before starting an experiment. DNA synthesis was followed by staining cells with ...
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    Nature 288 (1980), S. 729-730 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Hb and its isolated subunits were prepared from fresh human adult blood using standard procedures . Aqueous solutions of the proteins at pH 7.0 (0.1 M potassium phosphate buffer) were degassed by pumping, and potassium dithionite was added to eliminate the last traces of oxygen. The CO-complexes ...
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    Nature 288 (1980), S. 739-739 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] INTEREST in research on the biological effects of small negative air ions has been due to the variety of claims made for them, ranging from lethal effects on microorganisms to therapeutic effects on humans1"3. In spite of the promising results reported, there has been a lack of understanding of the ...
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